Results 111 to 120 of about 3,826 (235)

Microfossils of the Yangtzeplacognathus crassus zone in the middle darriwilian of the argentine precordillera [PDF]

, 2013
The San Juan Formation of the Eastern and Central Precordillera is composed mainly of fossiliferous limestone and marly limestone. The conodont biostratigraphy of the very top of this unit has been studied on several localities such as: Don Braulio, La ...
Beresi, Matilde Sylvia, Heredia, Susana Emma, Mestre Garcia, Ana Isabel, Nestell, G.   +3 more
core   +1 more source

Diversité des demosponges tunisiennes

, 2003
La revue des travaux réalisés jusqu’en 2003, relatifs à la systématique des spongiaires, à la bionomie benthique et aux inventaires de la biodiversité marine en Tunisie, ainsi que les nombreuses signalisations récentes, nous ont permis de dresser une liste de 143 espèces de démosponges en Tunisie.
Ben Mustapha, K., Zarrouk, S, Souissi, A., El Abed, A.   +3 more
openaire   +1 more source

Body Polarity and Mineral Selectivity in the Demosponge Chondrosia reniformis

The Biological Bulletin, 1998
The skeleton of the common Mediterranean demosponge Chondrosia reniformis lacks endogenous spicules; but exogenous siliceous material is selectively incorporated into its collagenous ectosome, strengthening this layer. Nevertheless, the settling of sponge buds during asexual reproduction necessitates an active incorporation of the calcareous substratum
BAVESTRELLO, GIORGIO, BENATTI, UMBERTO, CALCINAI B., CATTANEO VIETTI R., CERRANO C., GIOVINE, MARCO, GIOVINE M., LANZA S., PRONZATO, ROBERTO, SARÀ M.   +9 more
openaire   +4 more sources

Metabolic responses of a phototrophic sponge to sedimentation supports transitions to sponge-dominated reefs [PDF]

, 2017
Declines in coral abundance have been linked to increased sedimentation at many locations across the world and at some of these locations there have been subsequent increases in sponge abundance.
Bell, JJ, Biggerstaff, A, Jompa, J, Smith, DJ   +3 more
core   +1 more source

First records of Geodia demosponges from the New England seamounts, an opportunity to test the use of DNA mini-barcodes on museum specimens [PDF]

, 2017
Paco Cárdenas, Jon A. Moore
openalex   +1 more source

The unique skeleton of siliceous sponges (Porifera; Hexactinellida and Demospongiae) that evolved first from the Urmetazoa during the Proterozoic: a review

, 2007
International audienceSponges (phylum Porifera) had been considered as an enigmatic phylum, prior to the analysis of their genetic repertoire/tool kit.
Li, J., Müller, W. E. G., Qiao, L., Schröder, H. C., Wang, X.   +4 more
core  

Benthic invertebrates that form habitat on deep banks off southern California, with special reference to deep sea coral [PDF]

, 2006
There is increasing interest in the potential impacts that fishing activities have on megafaunal benthic invertebrates occurring in continental shelf and slope ecosystems.
Amend, Mark, Love, Milton S., Tissot, Brian N., Yoklavich, Mary M., York, Keri   +4 more
core  

Swedish marine demosponge fauna (Porifera: Demospongiae) sampled 80 years after Jägerskiöld’s inventory

European Journal of Taxonomy
It has been 80 years since Leonard Axel Jägerskiöld’s thorough marine faunistic inventory of the Swedish west coast (1921-1938), which represents the latest update of the Swedish sponge marine fauna. In this study, we present an update of the demosponge
Raquel PEREIRA, Mats LARSSON, Paco CÁRDENAS, Mikael THOLLESSON   +3 more
doaj   +1 more source

Characterization of epibionts associated with gastropod shells inhabited by Isocheles sawayai (Crustacea: Decapoda: Anomura) on the north coast of Santa Catarina

Revista Mexicana de Biodiversidad, 2018
This study analyzed the taxa associated as epibionts with mollusc shells inhabited by the hermit crab Isocheles sawayai, in order to understand how they affect host crabs.
Gilson Stanski, Alexandre Ribeiro-da Silva, Antonio Leão-Castilho   +2 more
doaj   +1 more source

Vertical Transmission of a Phylogenetically Complex Microbial Consortium in the Viviparous Sponge \u3cem\u3eIrcinia Felix\u3c/em\u3e [PDF]

, 2007
Many marine demosponges contain large amounts of phylogenetically complex yet highly sponge-specific microbial consortia within the mesohyl matrix, but little is known about how these microorganisms are acquired by their hosts.
Hentschel, Ute, Lindquist, Niels, Schmitt, Susanne, Weisz, Jeremy B.   +3 more
core   +1 more source